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@ -4,38 +4,39 @@
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Most of the tools are covered by the GNU General Public License (GPL),
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Most of the tools are covered by the GNU General Public License (GPL),
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although some are public domain, and others have a X11-style
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although some are public domain, and others have a X11-style
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copyright. To cover the GNU GPL
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copyright. To cover the GNU GPL requirements, the basic rule is if
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requirements, the basic rule is if you give out any binaries, you must
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you give out any binaries, you must also make the source available.
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also make the source available. For the full details, be sure to
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For the full details, be sure to read the text of the GNU GPL which
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read the text of the GNU GPL which follows.
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follows.
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The Cygwin API library found in the winsup subdirectory of the
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The Cygwin API library found in the winsup subdirectory of the source
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source code is also covered by the GNU GPL. By default, all
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code is also covered by the GNU GPL. By default, all executables link
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executables link against this library (and in the process include GPL'd
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against this library (and in the process include GPL'd Cygwin glue
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Cygwin glue code). This means that unless you modify the tools
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code). This means that unless you modify the tools so that compiled
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so that compiled executables do not make use of the Cygwin library,
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executables do not make use of the Cygwin library, your compiled
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your compiled programs will also have to be free software distributed
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programs will also have to be free software distributed under the GPL
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under the GPL with source code available to all.
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with source code available to all.
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Cygwin is currently available for proprietary use only through a
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Cygwin is currently available for proprietary use only through a
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proprietary-use license. Please see
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proprietary-use license. Please see
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@file{http://www.redhat.com/software/cygwin/} for more information
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@file{http://www.redhat.com/software/cygwin/} for more information
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about the Red Hat Cygwin Product.
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about the Red Hat Cygwin Product.
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In accordance with section 10 of the GPL, Red Hat, Inc. permits programs whose
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In accordance with section 10 of the GPL, Red Hat, Inc. permits
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sources are distributed under a license that complies with the Open
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programs whose sources are distributed under a license that complies
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Source definition to be linked with libcygwin.a without libcygwin.a
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with the Open Source definition to be linked with libcygwin.a without
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itself causing the resulting program to be covered by the GNU GPL.
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libcygwin.a itself causing the resulting program to be covered by the
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GNU GPL.
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This means that you can port an Open Source(tm) application to cygwin,
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This means that you can port an Open Source(tm) application to cygwin,
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and distribute that executable as if it didn't include a copy of
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and distribute that executable as if it didn't include a copy of
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libcygwin.a linked into it. Note that this does not apply to the cygwin
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libcygwin.a linked into it. Note that this does not apply to the
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DLL itself. If you distribute a (possibly modified) version of the DLL
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cygwin DLL itself. If you distribute a (possibly modified) version of
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you must adhere to the terms of the GPL, i.e., you must provide sources
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the DLL you must adhere to the terms of the GPL, i.e., you must
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for the cygwin DLL.
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provide sources for the cygwin DLL.
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See http://www.opensource.org/osd.html for the precise Open Source
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See @file{http://www.opensource.org/docs/definition_plain.html} for
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Definition referenced above.
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the precise Open Source Definition referenced above.
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@section GNU GENERAL PUBLIC LICENSE
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@section GNU GENERAL PUBLIC LICENSE
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@example
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@example
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Reference in New Issue